benchlm.ai

Claude 3 Opus vs Kimi K2.5

Side-by-side benchmark comparison across knowledge, coding, math, and reasoning.

Quick Verdict

Kimi K2.5 wins overall with a score of 62 vs 51 (11 point difference).Kimi K2.5 wins 4 out of 4 categories.

Claude 3 Opus

CreatorAnthropic
TypeProprietary
Context200K
Score51

Kimi K2.5

CreatorMoonshot AI
TypeOpen Weight
Context128K
Score62

Knowledge

Kimi K2.5

Claude 3 Opus

59.5

Kimi K2.5

74.8

61
MMLU
77
61
GPQA
76
59
SuperGPQA
74
57
OpenBookQA
72

Coding

Kimi K2.5

Claude 3 Opus

53

Kimi K2.5

69

53
HumanEval
69

Mathematics

Kimi K2.5

Claude 3 Opus

60

Kimi K2.5

76

61
AIME 2023
77
63
AIME 2024
79
62
AIME 2025
78
57
HMMT Feb 2023
73
59
HMMT Feb 2024
75
58
HMMT Feb 2025
74
60
BRUMO 2025
76

Reasoning

Kimi K2.5

Claude 3 Opus

58

Kimi K2.5

73

59
SimpleQA
74
57
MuSR
72

Frequently Asked Questions

Which is better, Claude 3 Opus or Kimi K2.5?

Kimi K2.5 scores higher overall with 62 vs 51, a difference of 11 points across all benchmarks.

Which is better for knowledge tasks, Claude 3 Opus or Kimi K2.5?

Kimi K2.5 leads in knowledge tasks with an average score of 74.8 vs 59.5.

Which is better for coding, Claude 3 Opus or Kimi K2.5?

Kimi K2.5 leads in coding with an average score of 69 vs 53.

Which is better for math, Claude 3 Opus or Kimi K2.5?

Kimi K2.5 leads in math with an average score of 76 vs 60.

Which is better for reasoning, Claude 3 Opus or Kimi K2.5?

Kimi K2.5 leads in reasoning with an average score of 73 vs 58.

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